Automatic gbain-scale



J. R. GATES.

Grain Meter.

No. 22,603. Patented Jan. 11, 1859.

UNITED STATES PATENT OFFICE.

JOSEPH RfGATES, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO HIMSELF, ANDALEXR.

' COREY, OF SHELBYVILLE, INDIANA.

AUTOMATIC GRAIN-SCALE.

Specification of Letters Patent No. 22,603, dated January 11, 1859.

To all whom it may concern:

Be it known that I, JOSEPH R. GATES, of Indianapolis, in the county ofMarion and State of Indiana, have invented a new and Improved AutomaticGrain-Scale, of which the following is a full and exact description,reference being had to the accompanying drawings and the letters ofreference marked thereon.

Figure l is a perspective and Figs. 2 and 3 are sectional Views, showingthe construction and operation of the scale.

A is a frame made fast to the ceiling.

B is a scale beam whose fulcrum operates in the upright post or fulcrumbearer a.

C is a scale box or scoop suspended from the beam B, by the bales Z),Z).

Attached to the frame A is the platform 0 (upon which the weights, 6,and f, rest,) and the projection g forming an inclined plane upon whichthe lever in slides.

i is a lever designed to operate the lever it by means of the connectingrod which is operated by the elbow lever 70.

Z is a hinged bottom which is closed by the weight and spring m, andlatched or held fast by the lever 71-.

a, is a pull designed to operate the ratchet of the indicator 0. Thepull '22-, is attached to the hinged bottom Z.

The lever h is fulcrumed at p, and adjusted by the spring 9 for thepurpose of forcing in the slide 1, by means of the pitman 25, andcutting off the flow of the grain.

D is a hopper and spout at the bottom of which are the slide 1 and brush8.

E is a hopper or receiver into which the grain is discharged from thescale box C.

The following is the operation of the scale: The grain being passed intothe hopper and spout D, passes into the scale box C,

until the weight of the grain in the same is suflicient to raise thelarge weight 6. As the scale box C descends the lever it, sliding uponthe inclined projection 9, partially closes the spout D, lessening thestream of grain until a weight sufiicient to balance the small weight f,passes into the scale box C, when it descends allowing the spring g toforce the lever h to operate the slide 1, by means of the pitman 25,thereby cutting off the flow of grain entirely. As the slide 7, closesthe spout D it rests against the brush .9, which yields to anything thatmight otherwise check the operation or the entire closing of the valveor slide r. The projection upon the lower end of the lever 72 beingmoved out at the same time relieves the hinged bottom Z allowing it toopen down into the receiver E, a portion of grain remaining upon ituntil itis gradually discharged from the receiver E, when the weight andspring mi again close the hinged bottom Z, the spring allowing the ballto descend upon the elbow lever Z By means of the connecting rod andlever 2'- the lever 7t withdraws the slide 1" at the same time that thelower projection upon the lever 71, passing under the hinged bottom Zholds it in place until another draft has passed into the scale box C.As the hinged bottom Z opens or descends the pull a is withdrawn fromthe notch in the indicator 0, and as the bottom is again closed the pullfalls into the succeeeding notch thereby revolving the indicator 0 forthe purpose of showing the number of drafts weighed, as at each draftthe bottom Z must open and close.

hat I claim and desire to secure by Letters Patent, is-

1. The lever 72- and spring 9 when used for the treble purpose ofoperating the cutoff gate 7, discharging or loosening the bottom valve Zand preventing the weights 6 and f, from raising the scale box C, anddrawing the slide 9" until the bottom Z is closed; thereby regulatingthe cutoff and flow of grain without using the weight of the grain whilethe same is being weighed.

2. The combination and arrangement of the spring and weight m with theelbow lever connecting rod y and lever 2' when constructed and operatedsubstantially as and for the purposes set forth.

J. R. GATES. Witnesses H. IV. ELLSWORTH, JOHN H. REDsToNE.

